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Title: |
US3610801:
DIGITAL MUSIC SYNTHESIZER

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Country: |
US United States of America

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Inventor: |
Fredkin, Edward; Brookline, MA
Minsky, Marvin L.; Brookline, MA

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Assignee: |
Triadex Incorporated, Brookline, MA
other patents from TRIADEX INCORPORATED (586155) (approx. 1)
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Published / Filed: |
1971-10-05
/ 1970-02-16

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Application Number: |
US1970000011683

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IPC Code: |
Advanced:
G10H 1/00;
G10H 7/00;
Core:
more...
IPC-7:
G10F 1/00;
G10H 5/00;

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U.S. Class: |
Current:
084/602;
084/648;
984/341;
984/388;
Original:
084/001.03;

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Field of Search: |
084/1.01,1.03,1.22,1.26

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Priority Number: |
| 1970-02-16 |
US1970000011683 |

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Abstract: |
In the apparatus disclosed herein, a note generator is controlled by a long term, quasi-periodic function which is in turn generated by applying digital feedback in preselected combinations around a digital register. The register comprises means for holding a plurality of bits of digital information in a given order, e.g. a shift register or counter, the held information being changeable according to a predetermined pattern in response to input signals applied thereto. Digital feedback is provided by applying to the register at least one input signal which is obtained according to a preselectable or adjustable code from bits of information obtained from various points in the register itself. The apparatus thus, in effect, composes music as distinguished from merely synthesizing sound.

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Attorney, Agent or Firm: |
Kenway, Jenney & Hildreth ;

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Primary / Asst. Examiners: |
Duggan, D. F.; Witkowski, Stanley J.

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INPADOC Legal Status: |
None
Family Legal Status Report

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Family: |
Show 4 known family members

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First Claim:
Show all 19 claims |
1. Apparatus for making music, said apparatus comprising:
- tone generating means operating to provide a variety of musical notes in response to respective predetermined combinations of control signals applied thereto;
- a register which comprises means for holding a plurality of bits of digital information in a given order, said held information being changeable according to a predetermined pattern in response to input signals applied to said register;
- means for reading digital information held in said register at a plurality of selected points in said register;
- means for applying to said register at least a first input signal which is obtained according to a preselectable code from bits of information obtained from said plurality of points;
- means for applying to said register a second input signal which varies according to a predetermined periodic function thereby to cause the information held in said register to periodically change in a predeterminable sequence; and
- means for applying to said tone generating means control signals which vary as respective preselectable logical functions of the information held in said register thereby to cause said tone generating means to produce a sequence of notes, the pattern of which is a function of the changing

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Background / Summary: |
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Drawing Descriptions: |
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Description: |
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Forward References: |
Show 15 U.S. patent(s) that reference this one

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